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Computer Network

Computer Network. Lab Practical 1 Study about different types of networks. Networking. C omputer network A collection of computing devices that are connected in various ways in order to communicate and share resources

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Computer Network

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  1. Computer Network Lab Practical 1 Study about different types of networks by : jigar M. Pandya

  2. Networking • Computer network A collection of computing devices that are connected in various ways in order to communicate and share resources Usually, the connections between computers in a network are made using physical wires or cables However, some connections are wireless, using radio waves or infrared signals by : jigar M. Pandya

  3. Networking • The generic term node or host refers to any device on a network • Data transfer rate The speed with which data is moved from one place on a network to another by : jigar M. Pandya

  4. Client Server • Computer networks have opened up an entire frontier in the world of computing called the client/server model by : jigar M. Pandya

  5. Servers • File server A computer that stores and manages files for multiple users on a network • Web server A computer dedicated to responding to requests (from the browser client) for web pages by : jigar M. Pandya

  6. Types of Networks • Local-area network (LAN) A network that connects a relatively small number of machines in a relatively close geographical area by : jigar M. Pandya

  7. LAN • Various configurations, called topologies, have been used to administer LANs • Ring topology A configuration that connects all nodes in a closed loop on which messages travel in one direction • Star topology A configuration that centers around one node to which all others are connected and through which all messages are sent • Bus topology All nodes are connected to a single communication line that carries messages in both directions by : jigar M. Pandya

  8. Types of Topology by : jigar M. Pandya 15-10

  9. Types of Networks • Metropolitan-area network (MAN) The communication infrastructures that have been developed in and around large cities by : jigar M. Pandya

  10. Types of Networks • Wide-area network (WAN) A network that connects two or more local-area networks over a potentially large geographic distance Communication between networks is called internetworking The Internet, as we know it today, is essentially the ultimate wide-area network, spanning the entire globe by : jigar M. Pandya

  11. Comparison Of LAN,MAN,WAN by : jigar M. Pandya

  12. So, who owns the Internet? Well, nobody does. No single person or company owns the Internet or even controls it entirely. As a wide-area network, it is made up of many smaller networks. These smaller networks are often owned and managed by a person or organization. The Internet, then, is really defined by how connections can be made between these networks. by : jigar M. Pandya

  13. WLAN • Wireless Local Area Network by : jigar M. Pandya

  14. WLAN benefits • Flexibility • increases working efficiency and productivity • extends the On-line period • Installation on difficult-to-wire areas • inside buildings • road crossings • Increased reliability • Note: Pay attention to security! • Reduced installation time • cabling time and convenient to users and difficult-to-wire cases by : jigar M. Pandya

  15. WLAN implementation problems • Lack of wireless networking experience for most IT engineer • Weak security policy • As a result, your WLAN may have • Poor performance (coverage, throughput, capacity, security) • Unstable service • Customer dissatisfaction by : jigar M. Pandya

  16. Campus Area Network(corporate area network (CAN).) • Campus Area Networks are usually a connection of many small LAN networks which are often used on university campuses and office buildings. Campus Area Networks allow for easy file sharing between different departments as all the files are usually shared on the server machines of each LAN network. This type of network offers a lot of simplicity in the transfer and downloading of files. by : jigar M. Pandya

  17. CAN by : jigar M. Pandya

  18. CAN • CAN benefits are as follows: • Cost-effective • Multidepartment network access • Single shared data by : jigar M. Pandya

  19. Storage Area Network • Storage Area Networks are primarily used as information databases. They are not usually used by large organizations  or similar entities. They are specifically used for the storage of information, and easy retrieval of specific pieces of data whenever required. Storage Area Networks are usually used by websites which offer downloading services. by : jigar M. Pandya

  20. by : jigar M. Pandya

  21. Cloud • Cloud networking is a new networking paradigm for building and managing secure private networks over the public Internet by utilizing global cloud computing infrastructure by : jigar M. Pandya

  22. Cloud Applications by : jigar M. Pandya

  23. Questions • Explain LAN, MAN, WAN with figure. • What are the different topologies explain with figure. • Write-down steps to implement wireless LAN. by : jigar M. Pandya

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